Features: Made of carbon steel material which is of high hardness and durability.
Great for use as fixing component, industrial and construction fasteners where you need hex socket cap screws.
They are M3,M4,M5 thread with many common length that you can use for general purpose.
These screws and nuts will be great replacement for industrial and construction fasteners.

Used widely in the home and office appliance, communication equipment, ship assembly and other machinery industry.

Specifications:
Material: Carbon steel
Grade: 12.9

Color: Black

Type: Hex socket cap screw
Size & Quantity:

M3 X 8      20pcs
M3 X 12    20pcs
M3 X 16    20pcs
M3 X 20    20pcs
M3 Nuts    80pcs

M4 X 8      20pcs
M4 X 12    20pcs
M4 X 16    20pcs
M4 X 20    20pcs
M4 Nuts    80pcs

M5 X 8      15pcs
M5 X 12    15pcs
M5 X 16    10pcs
M5 X 20    10pcs
M5 Nuts    50pcs

Box Size: 13.2 x 7.2 x 2.3cm / 5.19 x 2.83 x 0.9"

Package Includes:
1 Set x Screws & Nuts